To check internal PBX routing of a call, which tool is most reliable?

The Binary Log Viewer is considered the most reliable tool for checking internal PBX routing of a call because it provides in-depth access to the raw data related to call processes. This tool allows you to analyze the system logs at a granular level, helping identify specific call routing details, including SIP messages and various parameters that indicate how calls are processed through the PBX system.

In particular, the Binary Log Viewer can display comprehensive logs that include when calls are initiated, routed, and terminated, along with metadata such as call status and any errors that may have occurred. This level of detail is crucial for troubleshooting and understanding internal routing behavior.

Other options, while useful, do not provide the same depth of information. For example, Call History Logs give an overview of calls but lack the technical detail required for in-depth analysis. The Call Monitoring System allows for real-time observation of call activity but does not dive into backend routing information. Similarly, the Network Traffic Analyzer focuses on network-level data rather than the specifics of call processing within the PBX. Thus, the Binary Log Viewer stands out as the most effective tool for diagnosing and checking call routing within the 3CX system.